there is law. there is british law. there is american law. it's there, and it wasn't enforced in britain. >> rose: piers morgan for the hour next. captioning sponsored by rose communications from our studios in new york city, this is charlie rose. >> rose: piers morgan is here. he is the host of "piers morgan tonight." it is the two-yea anniversary of the show's launch. he has interviewed, a colorfulivate of the guests. they range from paris hilton to the calledy llama. earlier in his career he headline the "sun" and "daily mirror. he is bringing his appetite for controversy to america. i am pleased to have him on this program. welcome. époood to see you. >> good to see you, charlie. >> rose: i want to just go to gun control because you waded into this battle. was there a particular thing that set you off, other than the tragedy of 20 innocent children? >> yeah. it was actually-- it was earlier than tt. when i began at cnn in january 2010, it was a week after gabby giffords had been shot. and i was completely shocked, not just by what happen